Meet the Other Phone. Only the apps you allow.

Meet the Other Phone.
Only the apps you allow.

Buy now

Please or to access all these features

Fasting / 5:2 diet

Talk about intermittent fasting and 5:2, including what’s worked for others. Mumsnet hasn't checked the qualifications of anyone posting here. You may wish to speak to a medical professional before starting any diet.

The 5:2 thread number 29 - The C word party season is not too far off, come join us and drop a few pounds. Warning! This way of eating is so easy you may never want to stop...

999 replies

BetsyBell · 22/10/2013 21:54

The continuing thread for those of us following the 5:2 fast or other forms of fasting such as 4:3, ADF, or daily 16:8.

The 5:2 diet was featured on Horizon in August 2012 and essentially requires you to fast for 2 non-consecutive days per week. The other 5 days, you can eat normally - or approximately your Total Daily Energy Expenditure (TDEE - see explanation below). 4:3 is the same except you fast on 3 days in the week. Alternate-day fasting (ADF) is just how it sounds; you fast every other day. 16:8 is another form where you stick to only eating in an 8 hour window each day, therefore fasting for 16 hours each day.

By "fasting", we mean that we keep our calorie consumption very low, around 500 calories on average for a woman, 600 for a man, on those days.

You'll find on these threads we use a number of acronyms. If you're new to the threads, or Mumsnet in general, they might not make much sense.

WOE/WOL = Way Of Eating/Way Of Life. We use this term instead of "diet" as many of us see this as something to do in the long term.

MFP = My Fitness Pal, a website many use for keeping track of the number of calories they're eating.

TDEE = Total Daily Energy Expenditure, quantifies the number of calories you burn in a day. This measure is best estimated by scaling your Basal Metabolic Rate to your level of activity. TDEE is critical in tailoring your nutrition plan to desired fitness goals. Here is a link to a calculator to help you figure out how many calories you should be eating in a day.

NFD = Non fast day

NSV = Non scale victory

Michael Mosley has a website to accompany his book on the subject. Please go check it out, as he's the whole reason most of us are here!

Lurkers and new starters: please just jump in and post - you'll find a lot of support here and we’re a friendly bunch.

Here is a list of links to get you started with this way of eating. Please let us know if you find a new article or some other information online:

All our previous threads can be found by browsing through the fasting section of the site.

Another thread which breadandwine has started is a good resource for some of the tips and links that get lost in these big threads. In addition to sharing links, we try to condense some of our top tips for fasting there. Keep in mind, we all do this differently, so these are just tips, not rules. This might be a good place to catch up with us if you're feeling a bit lost!

frenchfancy has a recipe thread over here, please post any low-calorie recipes there so they don't get lost in these bigger threads!

If you've been at this a while and are moving on to maintaining your goal weight, there is a thread here to discuss that.

Here is the link to the BBC article regarding Michael Mosley's findings, which was featured on Horizon.

There's a link to the aforementioned Horizon programme here.

A blog post here gives some of the scientific explanation for why this way of eating helps you to not only lose weight, but improve your all-around health.

This link nicely demonstrates that there are many body ‘right’ body shapes and types, because what we are actually aiming for is low body fat for fitness and health.

A Telegraph article which comments on the diet and gives a brief overview by Dr Mosley himself, very informative if you're just starting. (I highly recommend this for an overview)

A study discussed here gives commentary specifically addressing the effect of this diet on obese people (both men and women), with regard to both health and weight loss. ("After 8 weeks of treatment, participants had an average 12.5 lbs reduction in body weight and a 4 cm decrease in waist circumference. Total fat mass declined by about 12 lbs while lean body mass remained relatively constant.) it also mentions "Plasma adiponectin, a protein hormone that is elevated in obesity and associated with heart disease, dropped by 30%. As did LDL cholesterol (25%) and triglycerides (32%).")

Something to consider if you are currently your ideal BMI: this appears to suggest the benefits for women at a lower BMI might not be seeing the same health benefits that are found on men at their ideal BMI.

A BIG THANK YOU to all who have been contributing. Most of us are learning this way of eating as we go along. All of the links above have been posted by others in our previous threads, and they've been very helpful.

A HUGE THANK YOU to Greeneggsandnicht for putting together all this info and resources into one concise OP text, much appreciated by so many 5:2ers!

Come join us, and tell us about your experiences with this diet!

OP posts:
somewherebecomingrain · 06/11/2013 20:02

Ps betsey you are right!

BetsyBell · 06/11/2013 20:10

somewhere - did you watch any of the recent Michael Mosely series? Trust Me I'm a Doctor. One of the episodes showed how more active people had a better insulin response and therefore could cope better with breaking down the sugar more effectively. I don't think you can look at the individual components of sugar's effect on the body without considering the rest if you see what I mean.

OP posts:
HellesBellesThinksSometimes · 06/11/2013 20:11

Nicely under tdee after two days of being slightly over but I am having major urges for that sort of burnt sugar flavour. Going to have a cuppa and go to bed with a book so that I don't do a dash to the co-op for daim or similar. I love daim. I really love milka daim.

Laska42 · 06/11/2013 20:15

Wannabee Turn out your wardrobe and make a pile of things to ebay or charity shop (well you are never going to wear them again are you because they will be too BIG).. Works especially well as motivation not to eat .. if you are just starting put the clothes you want to fit back into all together as a goal and so you can try them on as you lose .

A sort of NSV even though I'm a bit up from my lowest weight ( back on the serious fasts to lose it again now though) Today I found a GORGEOUS cashmere cardi in a charity shop (a sz 16 as I used to be ) and you know what I very nearly bought it even though it was too big (im sz 10/12 now) , but I didn't because I'm never going to be that size again.. Grin

MrsFlorrick · 06/11/2013 20:18

Somewhere. You want Brown rice syrup as someone else mentioned on here. It hasn't got fructose and because its a complex carb is more slow release.

Not tried it myself but I am going to.

I love baking and the DC absolutely love it too. But I want to avoid the massive amounts of sugar in baking. They are only small and don't need all that junk. It would be nice to find a good alternative

I've been using agave nectar. Which is only marginally better than honey. It's low GI. But still fructose.

It's hard. The obvious thing is to avoid it all together but I'm not sure it's realistic.

Southeastdweller · 06/11/2013 20:21

WannaBe I think doing exercise is the best form of distraction activity on a FD.

cuckoo It's not quite the same I know but I did two months on 4:3 and two of those days were consecutive and now I'm maintaining fine if that's any help at all.

AngieM2 · 06/11/2013 20:28

I'm not having a good week ladies. After reaching an all time (14 year) low of 10.4 on Saturday I've blown it this week. Kids dont go back to school til tomorrow and I haven't fasted at all this week. Have done one hour at the gym each day and 16:8 each day but I just know I'm up but daren't get on scales - it will kill me to see a rise.......the husband is working from home for the next 2 days, its tempting to go out for lunch....dear god, the excuses just keep on coming!

BsshBossh · 06/11/2013 20:37

WannaBe I find either going to the gym or going for a long walk (even in the rain) around my crunch times really helps me. I also save up all my errands and chores for FDs that I weave into my workng day so I don't have time to think. Bizarrely, I also find NFD menu planning really effective and pouring through recipe books and food mags, knowing I can eat what I want the very next day, also really helps me stick to and get through an FD.

BetsyBell · 06/11/2013 20:37

Somewhere All sugars and carbs are broken down and used by the body in the form of glucose so I guess it makes sense that pure glucose would be metabolised most quickly.

However, most of our sugar intake is combined with fat and other carbs so unless you're thinking about just intaking sugar in the form of glucose then it is a red herring isn't it?

Pure glucose is used to test for insulin response - can only be done in a fasted state of course so there's no effect from other food stuffs which of course would be broken down into glucose and other parts.

OP posts:
BsshBossh · 06/11/2013 20:39

Angie the kids go back tomorrow - so make that your first FD post-half term. Very few of us with kids managed to fast much over half term, and Halloween made it extra difficult to control our NFDs. You're not alone! New day tomorrow - get back on it!

BsshBossh · 06/11/2013 20:39

Angie, forgot to say, loads of us are fasting tomorrow: join us!

eatriskier · 06/11/2013 20:42

cuckoo ooohhh, that recipe is going in the bank. I shall try that out at the weekend. Starbucks do duffins but I'm told they are not very good duffins.

And just to make you all feel jealous the cronut was body lovely. To make you feel better I had the Greggs version - the bloke who invented the cronut has trademarked it so any other versions have to have different names - and I was very Blush asking for gregg's nuts in a busy bakers...

eatriskier · 06/11/2013 20:43

*bloody not body

AngieM2 · 06/11/2013 20:45

Thanks Bssh Right I'm with you all tomorrow...the lunch with hubby can wait til Friday. On the plus side...I can manage to be really busy tomorrow, starting with 2 hours of attack and pump at the gym. Bring it on.

BetsyBell · 06/11/2013 20:56

somewhere Sorry, I am being quite thick to be honest which is why my posts are seriously fragmented, I simply don't know enough about it. However, some further musings after thinking about MrsF's comment on Brown Rice syrup being a complex carb. Off to do a bit of reading:

So Yes, pure glucose would metabolise more quickly but your body only needs so much glucose at a time so much of it is converted to glycogen by the hormone insulin. Glycogen is then stored to be broken back down to glucose (by another hormone, glucagon) as and when the body needs it. So glucose levels must be consistent at all times. I'm assuming that there's only so much glycogen storage space so any excess glucose would be converted to fat.

Eating pure glucose is not going to help, it will be mostly excess and therefore stored one way or the other. The same as eating too much of anything then...

OP posts:
BsshBossh · 06/11/2013 20:59

Woohoo Angie! See you tomorrow then :)

Orangeychoc · 06/11/2013 21:02

Hi all
I post a few weeks ago but have fallen off the wagon.

I have calculated my BMI at 31.5 tonight, which is officially obese and I'm disgusted at myself. DS is 8 months old now so really the excuse of having a small baby has gone. I want a 2nd child at some point but if I got pregnant now iveoukd be classed as high risk - that disgusts me and will be my motivation going forward.

You all do so well. I need to regain control.

BsshBossh · 06/11/2013 21:05

Hi Orangey. So join us in tomorrow's fast then :)

BetsyBell · 06/11/2013 21:10

Somewhere If there's too much glucose in our system then the insulin levels will increase accordingly. So why is it important for insulin levels to reduce as fast as possible?

Some reasons according to this article:

Excess insulin is known to cause:

Weight gain, since insulin promotes the storage of fat

Lower cellular levels of magnesium, a mineral that is essential for keeping your blood vessels relaxed and your blood circulation efficient

An increase in sodium retention, which leads to holding excess water in your system, which causes high blood pressure

Increased amounts of inflammatory compounds in your blood, which can cause direct physical damage to your blood vessel walls and encourage the development of blood clots which can lead to heart attacks and respiratory failure

A reduction in HDL, an increase in undesirable small molecules of LDL, and an increase in triglycerides, all of which increase your risk for heart disease

Possibly a higher risk for cancer due to insulin's ability to contribute to cell proliferation

That's all I've got for now. I hope someone with better scientific knowledge will correct all the glaring errors I'm sure are there! All I know is I succumbed to some lemon yogurt (16.5% added sugar Sad) earlier and instantly got a headache.

OP posts:
BetsyBell · 06/11/2013 21:13

Hey Orangey, I was BMI 31.5 in September 2 years ago, got down to merely 'overweight' pretty quickly once I got motivated. Once I found 5:2 I got to 'normal' within weeks. It works! And it will work for you too - I'm fasting tomorrow so join in :)

OP posts:
whimsicalname · 06/11/2013 21:27

Hi orangey. I have a 9m baby (my 4th). I'm still breast feeding and I will be fasting tomorrow. Join me! One caveat though, i'm in the US so 5 hours behind, but will see how you're doing.

Well that's the motivaty bit done. I have poured food into myself today. Shocking. I can't even bring myself to think about how much Halloween stuff I've eaten. I'm going to brush my teeth and not eat any more until I, er, go out for dinner.

Likely to be fasting with a hangover tomorrow. Yuck.

whimsicalname · 06/11/2013 21:31

Oh, and I had pearls of wisdom from ages up thread. Pumpkin spice stuff really just means cinnamon flavour, in that it has the same spices in that you put in pumpkin pie: cinnamon, nutmeg etc. America I tell you. Such a foreign country.

Not2bObvious · 06/11/2013 21:31

Fast day tomorrow, looks like there's a good number of us, looking forward to the company Grin
I've bought some Asian dishes for dinner tomorrow, which I just love so I need to have a super low cal lunch - cannot face soup, go through stages like that where I can't stomach soup or salad. Thinking scrambled egg with ham maybe? 2 egg whites, 1 yolk, 2 slices of ham - probably 150? Heading out Friday night, have a new size 12 outfit bought on Sunday so need to be as lean as possible, so Fridays going to be very well behaved as well! All efforts will be worth it, vanity knows no pain Wink

CuckooAtchooUhOh · 06/11/2013 21:35

Betsy I am loving the glucose lessons! You have been paying attention haven't you! I still haven't watched any of them yet, haven't had chance, but when I do, which would you suggest getting stuck into first? I recall there being quite a list.

Cheers Bsshh - seems daft to waste the opportunity to fast when I don't want to eat anyway; considering how many fd's are spent wanting food whilst trying to avoid it!
I know myself (and life) well enough to want to take advantage while the going is good! It may never happen again for all I know :) Just don't want it to interfere as loss is key atm!

Eat - maybe my taste buds were affected by fasting, but I thought it was lovely. Not a bad substitute at all. And filling! Will experiment with different milks when can too.

BeCoolFucker · 06/11/2013 21:39

Orangey I'm having my 2nd fast day tomorrow if you want to join me??

Swipe left for the next trending thread